I’ve had my email address on a public web page for many years. It goes without saying that I get hundreds of mails in a day that I don’t want. I could live with that but recently I’ve been getting spam mails of a different kind.

I am constantly getting Delivery Status Notification(Failures) from so many email servers. It seems that some stupid spammers are sending emails with fake addresses that seem to be originating from my domain(knowyourraga.com). And so if an email address does not exist a failure mail is sent to back to the address which appears to be from my domain and I happen to get all the messages send to that domain in the catch-all mailbox(which is also my primary mailbox).

I have tried various tests to confirm that my domain is not an open relay and I mention it here because if anyone out there can find a weakness in my server than I could correct that. I am getting hundreds of failure notification messages in a day which means that someone is sending thousands or millions of messages appearing to come from my domain. This is scary! I have no clue how to tackle this